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rep-types.c
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rep-types.c
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/* Copyright (C) 1997, 1998, 1999 Marius Vollmer
* Copyright (C) 1999-2000 John Harper <john@dcs.warwick.ac.uk>
*
* $Id$
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this software; see the file COPYING. If not, write to
* Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
#include <config.h>
#include <assert.h>
#include <glib.h>
#include "rep-gtk.h"
#include <string.h>
#include <limits.h>
/* Hacking the basic types --jsh */
static inline int
valid_int_type (repv obj)
{
return rep_INTEGERP (obj) || rep_LONG_INTP (obj);
}
int
sgtk_valid_int (repv obj)
{
return valid_int_type (obj);
}
int
sgtk_valid_uint (repv obj)
{
return valid_int_type (obj);
}
int
sgtk_valid_long (repv obj)
{
return valid_int_type (obj);
}
int
sgtk_valid_ulong (repv obj)
{
return valid_int_type (obj);
}
int
sgtk_valid_char (repv obj)
{
return rep_INTP (obj);
}
repv
sgtk_uint_to_rep (unsigned long x)
{
return rep_make_long_uint (x);
}
repv
sgtk_int_to_rep (long x)
{
return rep_make_long_int (x);
}
repv
sgtk_long_to_rep (long x)
{
return rep_make_long_int (x);
}
repv
sgtk_ulong_to_rep (unsigned long x)
{
return rep_make_long_uint (x);
}
guint
sgtk_rep_to_uint (repv obj)
{
return rep_get_long_uint (obj);
}
gint
sgtk_rep_to_int (repv obj)
{
return rep_get_long_int (obj);
}
gulong
sgtk_rep_to_ulong (repv obj)
{
return rep_get_long_uint (obj);
}
glong
sgtk_rep_to_long (repv obj)
{
return rep_get_long_int (obj);
}
gchar
sgtk_rep_to_char (repv obj)
{
return rep_INT (obj);
}
repv
sgtk_char_to_rep (gchar c)
{
return rep_MAKE_INT (c);
}
char *
sgtk_rep_to_string (repv obj)
{
return rep_STRINGP (obj) ? rep_STR (obj) : (gpointer) (char *)"";
}
repv
sgtk_string_to_rep (char *x)
{
repv obj;
if (x == 0)
return Qnil;
obj = rep_string_dup (x);
g_free (x);
return obj;
}
repv
sgtk_static_string_to_rep (const char *x)
{
repv obj;
if (x == 0)
return Qnil;
obj = rep_string_dup (x);
return obj;
}
int
sgtk_valid_string (repv obj)
{
return rep_STRINGP (obj);
}
repv
sgtk_bool_to_rep (int x)
{
return x ? Qt : Qnil;
}
int
sgtk_rep_to_bool (repv obj)
{
return obj != Qnil;
}
int
sgtk_valid_function (repv obj)
{
return Ffunctionp (obj) != Qnil;
}
int
sgtk_valid_fd (repv obj)
{
return rep_FILEP (obj) && rep_LOCAL_FILE_P (obj);
}
int
sgtk_rep_to_fd (repv obj)
{
return fileno (rep_FILE(obj)->file.fh);
}
repv
sgtk_fd_to_rep (int fd)
{
if (fd < 0)
return Qnil;
else
return rep_file_fdopen (fd, "w+");
}
int
sgtk_valid_pointer (repv obj)
{
return obj == Qnil || rep_INTEGERP (obj) || rep_LONG_INTP (obj);
}
void *
sgtk_rep_to_pointer (repv obj)
{
if (obj == Qnil)
return NULL;
else
return (void *) rep_get_long_uint (obj);
}
repv
sgtk_pointer_to_rep (void *ptr)
{
repv data = rep_VAL (ptr);
if (data == 0)
return Qnil;
else if (data > rep_LISP_MAX_INT)
/* could use a bignum, but cons is more efficient */
return rep_MAKE_LONG_INT (data);
else
return rep_MAKE_INT (data);
}
static int
list_length (repv list)
{
repv len = Flength (list);
return (len && rep_INTP (len)) ? rep_INT (len) : 0;
}
/* namespace fuckage. needed so we can represent GObject base class */
GType
gobject_get_type (void)
{
return G_TYPE_OBJECT;
}
/* Floats. */
int
sgtk_valid_float (repv obj)
{
return rep_NUMERICP (obj);
}
gfloat
sgtk_rep_to_float (repv obj)
{
return rep_get_float (obj);
}
repv
sgtk_float_to_rep (gfloat f)
{
return rep_make_float (f, rep_FALSE);
}
int
sgtk_valid_double (repv obj)
{
return rep_NUMERICP (obj);
}
double
sgtk_rep_to_double (repv obj)
{
return rep_get_float (obj);
}
repv
sgtk_double_to_rep (double f)
{
return rep_make_float (f, rep_FALSE);
}
/* Composites. */
int
sgtk_valid_composite (repv obj, int (*predicate)(repv))
{
return sgtk_valid_complen (obj, predicate, -1);
}
int
sgtk_valid_complen (repv obj, int (*predicate)(repv), int len)
{
int actual_len;
if (rep_LISTP(obj))
{
actual_len = list_length (obj);
if (len >= 0 && len != actual_len)
return 0;
if (predicate)
{
while (rep_CONSP(obj))
{
if (!predicate (rep_CAR(obj)))
return 0;
obj = rep_CDR(obj);
}
}
return 1;
}
else if (rep_VECTORP(obj))
{
int i;
repv *elts;
actual_len = rep_VECT_LEN (obj);
if (len >= 0 && len != actual_len)
return 0;
if (predicate)
{
elts = rep_VECT(obj)->array;
for (i = 0; i < len; i++)
if (!predicate(elts[i]))
return 0;
}
return 1;
}
else
return 0;
}
repv
sgtk_slist_to_rep (GSList *list, repv (*toscm)(void*))
{
repv res, *tail = &res;
while (list)
{
*tail = Fcons (toscm (&list->data), *tail);
tail = rep_CDRLOC (*tail);
list = list->next;
}
*tail = Qnil;
return res;
}
GSList*
sgtk_rep_to_slist (repv obj, void (*fromscm)(repv, void*))
{
GSList *res, **tail = &res;
if (obj == Qnil || (rep_CONSP(obj)))
{
while (rep_CONSP(obj))
{
*tail = g_slist_alloc ();
if (fromscm)
fromscm (rep_CAR (obj), &(*tail)->data);
else
(*tail)->data = NULL;
obj = rep_CDR(obj);
tail = &(*tail)->next;
}
}
else if (rep_VECTORP(obj))
{
int len = rep_VECT_LEN (obj), i;
repv *elts = rep_VECT(obj)->array;
for (i = 0; i < len; i++)
{
*tail = g_slist_alloc ();
if (fromscm)
fromscm (elts[i], &(*tail)->data);
else
(*tail)->data = NULL;
tail = &(*tail)->next;
}
}
*tail = NULL;
return res;
}
void
sgtk_slist_finish (GSList *list, repv obj, repv (*toscm)(void*))
{
if (toscm)
{
if (obj == Qnil || (rep_CONSP(obj)))
{
while (rep_CONSP(obj) && list)
{
rep_CAR(obj) = toscm (list->data);
obj = rep_CDR(obj);
list = list->next;
}
}
else if (rep_VECTORP(obj))
{
int len = rep_VECT_LEN (obj), i;
repv *elts = rep_VECT(obj)->array;
for (i = 0; i < len && list; i++)
{
elts[i] = toscm (list->data);
list = list->next;
}
}
}
g_slist_free (list);
}
repv
sgtk_list_to_rep (GList *list, repv (*toscm)(void*))
{
repv res, *tail = &res;
while (list)
{
*tail = Fcons (toscm (&list->data), *tail);
tail = rep_CDRLOC (*tail);
list = list->next;
}
*tail = Qnil;
return res;
}
GList*
sgtk_rep_to_list (repv obj, void (*fromscm)(repv, void*))
{
GList *res = NULL, *tail;
if (obj == Qnil || (rep_CONSP(obj)))
{
while (rep_CONSP(obj))
{
GList *n = g_list_alloc ();
if (res == NULL)
res = tail = n;
else
{
g_list_concat (tail, n);
tail = n;
}
if (fromscm)
fromscm (rep_CAR (obj), &(n->data));
else
n->data = NULL;
obj = rep_CDR(obj);
}
}
else if (rep_VECTORP(obj))
{
int len = rep_VECT_LEN (obj), i;
repv *elts = rep_VECT(obj)->array;
for (i = 0; i < len; i++)
{
GList *n = g_list_alloc ();
if (res == NULL)
res = tail = n;
else
{
g_list_concat (tail, n);
tail = n;
}
if (fromscm)
fromscm (elts[i], &(n->data));
else
n->data = NULL;
}
}
return res;
}
void
sgtk_list_finish (GList *list, repv obj, repv (*toscm)(void*))
{
if (toscm)
{
if (obj == Qnil || (rep_CONSP(obj)))
{
while (rep_CONSP(obj) && list)
{
rep_CAR (obj) = toscm (list->data);
obj = rep_CDR(obj);
list = list->next;
}
}
else if (rep_VECTORP(obj))
{
int len = rep_VECT_LEN (obj), i;
repv *elts = rep_VECT(obj)->array;
for (i = 0; i < len && list; i++)
{
elts[i] = toscm (list->data);
list = list->next;
}
}
}
g_list_free (list);
}
sgtk_cvec
sgtk_rep_to_cvec (repv obj, void (*fromscm)(repv, void*), size_t sz)
{
sgtk_cvec res;
int i;
char *ptr;
if (rep_LISTP(obj))
{
res.count = list_length (obj);
res.vec = rep_alloc ((res.count + 1) * sz);
if (fromscm)
{
for (i = 0, ptr = res.vec; i < res.count; i++, ptr += sz)
{
fromscm (rep_CAR (obj), ptr);
obj = rep_CDR(obj);
}
}
else
memset (res.vec, 0, res.count * sz);
}
else if (rep_VECTORP(obj))
{
repv *elts = rep_VECT(obj)->array;
res.count = rep_VECT_LEN (obj);
res.vec = rep_alloc ((res.count + 1) * sz);
if (fromscm)
{
for (i = 0, ptr = res.vec; i < res.count; i++, ptr += sz)
fromscm (elts[i], ptr);
}
else
memset (res.vec, 0, res.count * sz);
}
/* make all vectors zero terminated, makes `tvec' easier to implement */
memset (((char *)res.vec) + res.count * sz, 0, sz);
return res;
}
void
sgtk_cvec_finish (sgtk_cvec *cvec, repv obj, repv (*toscm)(void *), size_t sz)
{
if (toscm)
{
if (obj == Qnil || (rep_CONSP(obj)))
{
int i, len = cvec->count;
char *ptr;
for (i = 0, ptr = cvec->vec;
i < len && rep_CONSP(obj);
i++, ptr += sz, obj = rep_CDR (obj))
{
rep_CAR (obj) = toscm (ptr);
}
}
else if (rep_VECTORP(obj))
{
repv *elts = rep_VECT(obj)->array;
int len1 = rep_VECT_LEN (obj), len2 = cvec->count, i;
char *ptr;
for (i = 0, ptr = cvec->vec; i < len1 && i < len2; i++, ptr += sz)
elts[i] = toscm (ptr);
}
}
rep_free (cvec->vec);
}
repv
sgtk_cvec_to_rep (sgtk_cvec *cvec, repv (*toscm)(void *), size_t sz)
{
int len = cvec->count, i;
repv obj = Fmake_vector (rep_MAKE_INT(len), Qnil);
repv *elts = rep_VECT (obj)->array;
char *ptr;
for (i = 0, ptr = cvec->vec; i < len; i++, ptr += sz)
elts[i] = toscm (ptr);
g_free (cvec->vec);
return obj;
}